[Tagging] Center turning lanes: centre_turn_lane=yes method vs. lanes:both_ways method

Paul Johnson baloo at ursamundi.org
Sun Feb 19 12:09:53 UTC 2017


On Sun, Feb 19, 2017 at 5:27 AM, Volker Schmidt <voschix at gmail.com> wrote:

> I like the centre_turn_lane=yes method.
>
> But there is also the lanes= x|x|x method as shown on
> http://wiki.openstreetmap.org/wiki/Lanes
>
> Assume I have a 5-lane road with two normal lanes in each direction and a
> centre-turn lane in the middle (right-hand traffic).
>
> The lane directions are:
> direction:lanes=backward|backward|both|forward|forward
>
> How do I tag the turn instructions?
> Is it:
> turn:lanes=left|through|both_ways|through|right
> (i.e. the turn direction is referred  to the direction of the way)?
>
> Or or should the turn direction be referred to the direction of the lane,
> i.e.
> turn:lanes=right|through|both_ways|through|right
> ?
>

turn:lanes:forward and turn:lanes:backward.  JOSM's turnlanes-tagging
<https://github.com/JOSM/turnlanes-tagging> plugin makes tagging lanes a
real snap.  I strongly advise using that rather than trying to hand tag
lanes.
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